文献类型：期刊文献

英文题名：Isotherm models for adsorption of heavy metals from water-A review

作者：Chen, Xinyu[1];Hossain, Md Faysal[1,3];Duan, Chengyu[1];Lu, Jian[1];Tsang, Yiu Fai[3];Islam, Md Shoffikul[4];Zhou, Yanbo[1,2]

机构：[1]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asses, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Natl Engn Lab Ind Wastewater Treatment, Shanghai 200237, Peoples R China;[3]Educ Univ Hong Kong, Dept Sci & Environm Studies, Hong Kong 999077, Peoples R China;[4]Univ Chittagong, Dept Soil Sci, Chittagong 4331, Bangladesh

年份：2022

卷号：307

外文期刊名：CHEMOSPHERE

收录：;EI(收录号：20223012393117);WOS:【SCI-EXPANDED(收录号:WOS:000830748300002)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant No. 51778230) and the Program of Shanghai Outstanding Technology Leaders (Grant No. 20XD1433900) .

语种：英文

外文关键词：Heavymetals; Adsorption; Isothermmodels; Errorfunctions; Carbon-basedmaterials

摘要：Adsorption is a widely used technology for removing and separating heavy metal from water, attributed to its eco-friendly, cost-effective, and high efficiency. Adsorption isotherm modeling has been used for many years to predict the adsorption equilibrium mechanism, adsorption capacity, and the inherent characteristics of the adsorption process, all of which are substantial in evaluating the performance of adsorbents. This review sum-marizes the development history, fundamental characteristics, and mathematical derivations of various isotherm models, along with their applicable conditions and application scenarios in heavy metal adsorption. The latest progress in applying isotherm models with a one-parameter, two-parameter, and three-parameter in heavy metal adsorption using carbon-based materials, which has gained much attention in recent years as low-cost adsor-bents, is critically reviewed and discussed. Several experimental factors affecting the adsorption equilibrium, such as solution pH, temperature, ionic strength, adsorbent dose, and initial heavy metal concentration, are briefly discussed. The criteria for selecting the optimum isotherm for heavy metal adsorption are proposed by comparing various adsorption models and analyzing mathematical error functions. Finally, the relative perfor-mance of different isotherm models for heavy metal adsorption is compared, and the future research gaps are identified.